IBM DBCA-204860 Hard Drive Specifications - Page 81

the specifid level by Set Feature Enable Adaptive Power Management command.

Page 81 highlights

transition time with the condition that the calculated response delay is shorter than the value calculated from the specifid level by Set Feature Enable Adaptive Power Management command. The optimal time to enter Active Idle mode is variable depending on the users recent behavior. It is not possible to achieve the same level of Power savings with a fixed entry time into Active Idle because every users data and access pattern is different. The optimum entry time changes over time. The same algorithm works for entering into Low Power Idle mode and Standby mode, which consumes less power but need more recovery time switching from this mode to Active mode. General Operation Descriptions 73

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transition time with the condition that the calculated response delay is shorter than the value calculated from
the specifid level by Set Feature Enable Adaptive Power Management command.
The optimal time to enter Active Idle mode is variable depending on the users recent behavior. It is not
possible to achieve the same level of Power savings with a fixed entry time into Active Idle because every
users data and access pattern is different.
The optimum entry time changes over time.
The same algorithm works for entering into Low Power Idle mode and Standby mode, which consumes less
power but need more recovery time switching from this mode to Active mode.
General Operation Descriptions
73